Ajax working on preview but not when exported to a server.

Im in a really tight spot. Exactly what the title says. Anyone has an idea why coud this happen? I tried everything (i think) and i discovered that the is not throwing an error, its not starting at all.

Update: I tried some other ways to activate the ajax. But its not working. I think something's wrong with my construct or maybe the saved file.

Use the developer tools in your browser to see if it is making the call to a file that actually exists.

If you can load the file in your browser, Construct will be able to find it too (assuming you are telling Construct the proper place to look).